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CVE-2023-39326

Status Candidate

Overview

A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small.

Related Files

Red Hat Security Advisory 2024-0694-03
Posted Feb 8, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-0694-03 - Logging Subsystem 5.7.11 - Red Hat OpenShift. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2023-39326
SHA-256 | bc780341516006dfe22629ea1841ef212f6080baffde270be2824e8b3b52ab6e
Download | Favorite | View
Ubuntu Security Notice USN-6574-1
Posted Jan 11, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6574-1 - Takeshi Kaneko discovered that Go did not properly handle comments and special tags in the script context of html/template module. An attacker could possibly use this issue to inject Javascript code and perform a cross site scripting attack. This issue only affected Go 1.20 in Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 23.04. It was discovered that Go did not properly validate the "//go:cgo_" directives during compilation. An attacker could possibly use this issue to inject arbitrary code during compile time.

tags | advisory, arbitrary, javascript, xss
systems | linux, ubuntu
advisories | CVE-2023-39318, CVE-2023-39323, CVE-2023-39326, CVE-2023-45285
SHA-256 | b8c2a5761a1b9b637336f2af66c0577c0e91e5d6928b1d69d773c8f5060e8589
Download | Favorite | View
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